Designed as a HOn3 craftsman kit, these narrow gauge hopper car bodies are accurate representations of the 17 Trinity-built units purchased by the United States Gypsum Company for their Plaster City operation in 1999-2000. The model comes as a one piece body less grabirons, brake rigging, crossover walks, draft gear, couplers, trucks, and other fine details. Use Kadee #722 or #726 Hon3 trucks. Please consult prototype photographs during the construction process. These kits are designed for moderate to advanced modellers that can supply some scratchbuilding skill and ingenuity to the build.